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註釋Two complete 5 cell superconducting cavities at {beta} = 0.5 have been fabricated in the TRASCO INFN program. The cavities have been designed to minimize peak electric and magnetic fields, with a goal of 8.5 MV/m of accelerating gradient, at a Q> 5 10{sup 9}. The cavities have been tested in vertical cryostats at TJNAF and Saclay and the results are summarized here.